Chrysoberyl. Crystal of chrysoberyl (beryllium aluminium oxide). Chrysoberyl occurs in a range of colours including green, yellow, grey, brown and colourless. A variety known as alexandrite is red in artificial light but dark green in natural light and, along with the colourless variety, is highly prized as a gemstone. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA |
Modell-Rechte: | nicht erforderlich |
Länge: | 35 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |